The quake, which occurred at 3:55 p.m., was centered two miles east of The Geysers, four miles southwest of Cobb and four miles west northwest of Anderson Springs, according to a preliminary report from the US Geological Survey.
It was recorded at a depth of 2.3 miles, the survey reported.
The US Geological Survey received a large number of shake reports – 85 shake reports from 18 zip codes just before 2 a.m. Sunday.
Reports came from Clearlake, Lower Lake and Middletown, from around Sonoma and Napa counties, and as far away as Sonoma County, records showed.
A 3.3 magnitude earthquake was reported near The Geysers on May 9, as Lake County News has reported.
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